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Table 7 The standard deviation of the best performing MAP scores after multiple runs (5) of the SIMPLE rnd-SCD and gaussRnd-SCD, on both collections

From: Localizing global descriptors for content-based image retrieval

Standard deviation (600 samples)  
  UKBench UCID
Size Rnd GaussRnd Rnd GaussRnd
2048 0.004458 0.003389 0.002695 0.002743
512 0.005249 0.003422 0.003234 0.003206
128 0.006146 0.003767 0.003684 0.003595
32 0.008951 0.005187 0.004278 0.003801